Central Machinery 90589 User manual

TIRE CHANGER
SEMI-AUTOMATIC WITH SWINGING ARM
Model 90589
ASSEMBLY AND OPERATING INSTRUCTIONS
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
Distributed exclusively by Harbor Freight Tools®.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright©2003 by Harbor Freight Tools®. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.
For technical questions or replacement parts, please call 1-800-444-3353.
Manual revised 07g

Page 2SKU 90589 For technical questions, please call 1-800-444-3353.
PRODUCT SPECIFICATIONS
Electrical Requirements 220 V / 60 Hz / 10 A
Motor 1 HP / 1740 RPM
Maximum Tire Diameter 39”
Maximum Tire Width 13”
External Locking Rim Dimensions 10”-18”
Internal Locking Rim Dimensions 12”-20”
Maximum PSI Working Pressure 110 PSI
Bead Break Force 5,500 lb.
Maximum Rotation Torque (Turntable) 795 ft-lb
Air Inlet Fitting Size 1/4”-18 NPT
Weight 566 lb
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures, parts list and assembly
diagram. Keep your invoice with this manual. Write the invoice number on the inside
of the front cover. Keep this manual and invoice in a safe and dry place for future
reference.
GENERAL SAFETY RULES
WARNING! Read all instructions
Failure to follow all instructions listed below may result in electric shock,
re, and/or serious injury. The term “power tool” in all of the warnings listed
below refers to your mains-operated (corded) power tool or battery-operated
(cordless) power tool.
SAVE THESE INSTRUCTIONS
WORK AREA
Keep your work area clean and well lit.1. Cluttered benches and dark areas
invite accidents.
Do not operate power tools in explosive atmospheres, such as in the2.
presence of ammable liquids, gases, or dust. Power tools create sparks
which may ignite the dust or fumes.
Keep bystanders, children, and visitors away while operating a power tool.3.
Distractions can cause you to lose control. Protect others in the work area from
debris such as chips and sparks. Provide barriers or shields as needed.

Page 3SKU 90589 For technical questions, please call 1-800-444-3353.
ELECTRICAL SAFETY
Grounded tools must be plugged into an outlet properly installed and1.
grounded in accordance with all codes and ordinances. Never remove the
grounding prong or modify the plug in any way. Do not use any adapter
plugs. Check with a qualied electrician if you are in doubt as to whether
the outlet is properly grounded. If the tools should electrically malfunction or
break down, grounding provides a low resistance path to carry electricity away
from the user.
Double insulated tools are equipped with a polarized plug (one blade is2.
wider than the other). This plug will t in a polarized outlet only one way.
If the plug does not t fully in the outlet, reverse the plug. If it still does
not t, contact a qualied electrician to install a polarized outlet. Do not
change the plug in any way. Double insulation eliminates the need for the
three wire grounded power cord and grounded power supply system.
Avoid body contact with grounded surfaces such as pipes, radiators,3.
ranges, and refrigerators. There is an increased risk of electric shock if your
body is grounded.
Do not expose power tools to rain or wet conditions.4. Water entering a power
tool will increase the risk of electric shock.
Do not abuse the Power Cord.5. Never use the Power Cord to carry the
tools or pull the Plug from an outlet. Keep the Power Cord away from
heat, oil, sharp edges, or moving parts. Replace damaged Power Cords
immediately. Damaged Power Cords increase the risk of electric shock.
PERSONAL SAFETY
Stay alert. Watch what you are doing, and use common sense when1.
operating a power tool. Do not use a power tool while tired or under the
inuence of drugs, alcohol, or medication. A moment of inattention while
operating power tools may result in serious personal injury.
Dress properly. Do not wear loose clothing or jewelry. Contain long2.
hair. Keep your hair, clothing, and gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in moving parts.
Avoid accidental starting.3. Be sure the Power Switch is off before plugging
in. Plugging in power tools with the Power Switch on, invites accidents.
Remove adjusting keys or wrenches before turning the power tool on.4. A
wrench or a key that is left attached to a rotating part of the power tool may result
in personal injury.

Page 4SKU 90589 For technical questions, please call 1-800-444-3353.
Do not overreach. Keep proper footing and balance at all times.5. Proper
footing and balance enables better control of the power tool in unexpected
situations.
Use safety equipment. Always wear eye protection.6. Dust mask, non-skid
safety shoes, hard hat, or hearing protection must be used for appropriate
conditions.
TOOL USE AND CARE
Do not force the tool. Use the correct tool for your application.1. The correct
tool will do the job better and safer at the rate for which it is designed.
Do not use the power tool if the Power Switch does not turn it on or off.2.
Any tool that cannot be controlled with the Power Switch is dangerous and must
be replaced.
Disconnect the Power Cord Plug from the power source before making any3.
adjustments, changing accessories, or storing the tool. Such preventive
safety measures reduce the risk of starting the tool accidentally.
Store idle tools out of reach of children and other untrained persons.4. Tools
are dangerous in the hands of untrained users.
Maintain tools with care. Keep cutting tools sharp and clean.5. Properly
maintained tools with a sharp cutting edge are less likely to bind and are easier
to control. Do not use a damaged tool. Tag damaged tools “Do not use” until
repaired.
Check for misalignment or binding of moving parts, breakage of parts,6.
and any other condition that may affect the tool’s operation. If damaged,
have the tool serviced before using. Many accidents are caused by poorly
maintained tools.
Use only accessories that are recommended by the manufacturer for your7.
model. Accessories that may be suitable for one tool may become hazardous
when used on another tool.
SERVICE
Tool service must be performed only by qualied repair personnel. 1. Service
or maintenance performed by unqualied personnel could result in a risk of injury.
When servicing a tool, use only identical replacement parts. Follow2.
instructions in the “Inspection, Maintenance, And Cleaning” section of this
manual. Use of unauthorized parts or failure to follow maintenance instructions
may create a risk of electric shock or injury.
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Page 5SKU 90589 For technical questions, please call 1-800-444-3353.
SPECIFIC SAFETY RULES
Maintain a safe working environment.1. Keep the work area well lit. Make
sure there is adequate surrounding workspace. Always keep the work area free
of obstructions, grease, oil, trash, and other debris. Do not use this product in
areas near ammable chemicals, dusts, and vapors.
Maintain labels and nameplates on the Tire Changer.2. These carry important
information. If unreadable or missing, contact Harbor Freight Tools for a
replacement.
Use eye and hearing protection.3. Always wear ANSI approved safety impact
eye goggles and hearing protectors when using this product.
Do not allow children to use or play with this product.4.
Store idle equipment.5. When not in use, tools and equipment should be stored
in a dry location to inhibit rust. Always lock up tools and equipment, and keep out
of reach of children.
Do not use this product if under the inuence of alcohol or drugs. 6. Read
warning labels on prescriptions to determine if your judgement or reexes are
impaired while taking drugs. If there is any doubt, do not attempt to use this
product.
Dress properly.7. Do not wear loose clothing or jewelry as they can be caught in
moving parts. Wear restrictive hair covering to contain long hair. Wear heavy
duty gloves when handling tires, but be careful to keep gloves away from all
moving parts of the Tire Changer.
Do not overreach.8. Keep proper footing and balance at all times. Do not reach
over or across running machines.
Industrial applications must follow OSHA requirements.9.
Maintain this product with care.10. Keep this product clean for better and safer
performance.
Maintenance:11. For your safety, service and maintenance should be performed
regularly by a qualied technician.
Check for damaged parts.12. Before using this product, carefully check that it will
operate properly and perform its intended function. Check for damaged parts
and any other conditions that may affect the operation of this product. Replace
or repair damaged or worn parts immediately.
Replacement parts and accessories:13. When servicing, use only identical
replacement parts. Only use accessories intended for use with this product.
Use the right tool or attachment for the job.14. Do not attempt to force a small
tool or attachment to do the work of a larger industrial tool or attachment. There
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Page 6SKU 90589 For technical questions, please call 1-800-444-3353.
are certain applications for which this product was designed. It will do the job
better and more safely at the rate for which it was intended. Do not modify this
product, and do not use this product for a purpose for which it was not intended.
WARNING:15. The Tire Changer requires the assembly of a UL, CSA, or CE listed,
220 Volt, 3-Prong Electrical Plug (not provided) onto the unit’s electrical power
cord. The National Electric Code requires that the GREEN wire on the unit must
be used as the GROUND wire. The “HOT” wires on the power cord are the
BLACK and WHITE wires. Do not attempt to alter the 220 Volt, 3-Prong Plug or
its assembly to the power cord (as mentioned above) in any way. In addition,
it is recommended that this assembly procedure be carried out by a qualied
electrician.
CAUTION!16. Prior to performing any services or maintenance on the Tire
Changer, always disconnect the Tire Changer from its air supply source. Pump
the Bead Breaker Pedal several times to evacuate all compressed air from the
machine, and disconnect the unit from its electrical supply source.
Use only clean, dry, regulated, compressed air at up to17. 110 PSI (8-BAR).
Never use oxygen, carbon dioxide, combustible gases, or any other bottled gas
as a power source for this machine.
EXPLOSION DANGER! Never overinate tires or other inatable items. 18.
When inating a tire with compressed air, make sure to inate the tire to
the exact PSI as recommended by the tire manufacturer. Always observe
Pressure Gauge of Tire Changer to check the actual pressure in tires.
To avoid personal injury and/or machine damage, always make sure the tire19.
rim is rmly secured on the Tire Changer with its Jaws.
Never place your hands or ngers between the vehicle wheel rim and the 20.
Jaws of the Tire Changer during the locking/clamping stage.
Dispose of old tires in accordance with local, state, and federal laws.21.
People with pacemakers should consult their physician(s) before use.22.
Electromagnetic elds in close proximity to heart pacemaker could cause
pacemaker interference or pacemaker failure.
WARNING!23. The warnings, precautions, and instructions discussed in this
manual cannot cover all possible conditions and situations that may occur. The
operator must understand that common sense and caution are factors which
cannot be built into this product, but must be supplied by the operator.
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Page 7SKU 90589 For technical questions, please call 1-800-444-3353.
UNPACKING
When unpacking, check to make sure all the parts shown on the Parts Lists
near the end of this manual are included. If any parts are missing or broken, please
call Harbor Freight Tools at the number shown on the cover of this manual as soon as
possible.
ASSEMBLY INSTRUCTIONS
Note: For additional information regarding the parts mentioned in the following pages,
refer to the Assembly Diagrams near the end of this manual.
With assistance and a proper lifting device, carefully move the Tire Changer to1.
the desired workplace location. Make sure to position the Tire Changer on a
at, level, dry, oor surface capable of bearing the weight of the Tire Changer,
operator, additional tools, tires, etc.
Using the four mounting holes located at the Tire Changer’s base as a template,2.
mark the spots where four 3/8” diameter mounting holes will be drilled in the oor
surface. Then, temporarily set the Tire Changer aside.
Drill the four, pre-marked, 3/8” holes in the oor surface (about 4” deep). Then, 3.
insert a 3/8” expansion plug (not included) in each of the four holes.
Move the Tire Changer back to its original position, making sure to align its four4.
mounting holes with the four pre-drilled holes in the oor surface. Once the holes
are aligned and the Tire Changer is level, insert four 3/8” bolts (not included)
through the mounting holes and into the expansion plugs. Secure the Tire
Changer to the oor surface by tightening the four 3/8” bolts.
Prior to assembling and using the Tire Changer, it is recommended that you5.
familiarize yourself with the main components of the unit. (See Figure A.)
NOTE:6. Prior to beginning the assembly procedures, make sure to remove
all the additional parts and accessories from the shipping boxes that are
included with the Tire Changer.
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REV 07g
LOCKING HANDLE BAR (142)
HEX VERTICAL ARM (120)
MOUNTING HEAD (123)
JAW (203)
TURNTABLE (201)
BEAD LIFTING LEVER (13)
INFLATION PEDAL (IT106)
TILTING PEDAL (404)
CLAMPING PEDAL (403)
BEAD BREAKER PEDAL (402) REVERSE PEDAL (401)
RUBBER WHEEL SUPPORT (3 & 11)
SHOVEL (315)
BEAD BREAKER ARM (321)
FILTER & PRESSURE
REDUCER + LUBR. (IT207)
AIR TANK (IT1)
VERTICAL COLUMN (101)
FIGURE A
7. Vertical column assembly procedure:
With assistance, place the Column (1, Fig. B-1)1)
in its seating on the Body Assembly (2, Fig. B-1).
Push the Air Hose (3, Fig. B-1) through the large
round hole into the body.
Insert the Pin (13, Fig. B-1) through the column as2)
shown in Fig. B-1 and fasten it with Screws (14,
Fig. B-1) and Washers (15, Fig. B-1).
Using the Screw (17, Fig. B-1) tighten with the3)
Self- Locking Nut (16, Fig. B-1) to connect the Pin
(18, Fig. B-1) of the post tilting cylinder.
Remove the four Screws (4, Fig. B-1) from the left4)
Side Cover (6, Fig. B-1) and remove it. Connect
the Air Hose (3, Fig. B-1) from the column to the
6mm Connector (5, Fig. B-1).
Replace the Side Cover (6, Fig. B-1) and fasten it5)
with the Screws (4, Fig. B-1).
Install the plastic guard and x it with the two Cap 6)
Screws (10, Fig. B-1).
Fix the Metal Sheeting Guard (11, Fig. B-1) to the back of the vertical column (1, Fig.7)
B-1) using the two Cap Screws (12, Fig. B-1).
FIGURE B-1

Page 9SKU 90589 For technical questions, please call 1-800-444-3353.
SCREW (114)
KNOB (115)
SPRING (117)
SELF-LOCKING
NUT
(137)
SCREW
(129)
SCREW
(129)
SCREW
(113)
PLASTIC COVER (116)
VERTICAL LOCKING PLATE (118)
VERTICAL ARM (120)
FIGURE B-2
8. Loosen the three Screws (113 & 129). Then, lift up and remove the Plastic Cover
(116). (See Figure B-2.)
With assistance, slide the Vertical Arm (120) fully upward and hold.9. NOTE: You
may wish to place wooden blocks under the Vertical Arm in order to keep the
Vertical Arm in its upward position throughout this assembly procedure.
(See Figure B-2.)
Temporarily unscrew and remove the Self-Locking Nut (137) from the Vertical10.
Locking Plate (118). (See Figure B-2.)
Insert the Spring (117) onto the upper portion of the Vertical Arm (120), and allow11.
the Spring to rest upon the Vertical Locking Plate (118). (See Figure B-2.)
Re-tighten the Self Locking Nut (137) into the Vertical Locking Plate (118) in12.
order to secure the Spring (117) to the Vertical Locking Plate. (See Figure B-2.)
Insert the Knob (115) onto the upper portion of the Spring (117). Push the Knob13.
rmly down, while compressing the Spring, until the Knob contacts the upper
portion of the Vertical Arm (120). Then secure the Knob to the Vertical Arm,
using the Screw (114). (See Figure B-2.)
CAUTION! Use extreme caution when compressing the Spring (117).
Compressing the Spring will cause resistance which could result in
personal injury should the Spring suddenly expand. Maintain a rm grip
on the Knob (115) while compressing the Spring. Firmly tighten the Screw
(114) to secure the Knob to the Vertical Arm. (See Figure B-2.)
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Page 10SKU 90589 For technical questions, please call 1-800-444-3353.
Re-attach the Plastic Cover (116), and re-tighten the three Screws (113 & 129).14.
If using wooden blocks to support the Vertical Arm (120), remove the blocks.
(See Figure B-2.)
NOTE:15. For shipping purposes, the Shovel (315) is restrained with a temporary
tie-down bracket. Make sure to remove and discard the bracket.
(See Figure A.)
Lay out the Tool Box (IT42) and Tool Box Support (IT38).16. (See Assy. Diagram.)
Attach the Tool Box Support (IT38) to the Body (1) of the Tire Changer, using the17.
Mounting Bracket Bolts. (See Assy. Diagram.)
Attach the Tool Box (IT42) to the Tool Box Support (IT38), using the Mounting18.
Bracket Bolts. (See Assy. Diagram.)
Remove the Left Side Cover (8) from the Body (1) to expose the inside of the Tire19.
Changer. (See Assy. Diagram.)
Run the Hose (IT15) through the opening in the Body (1) of the Tire Changer.20.
Then, connect the Hose to the 5-Way Valve (IT17).
(Note location in Assy. Diagram.)
Re-attach the Left Side Cover (8) to the Body (1) of the Tire Changer.21.
(See Assy. Diagram.)
Assembly of the Tire Changer should be complete and the machine now ready22.
to operate. Only set up and use the Tire Changer on a at, level surface that is
capable of supporting the weight of this heavy tool (566 lb.) and all required tools
and tires.
REV 07g
OPERATING INSTRUCTIONS
To Perform Preliminary Operating Tests:
Plug the Power Cord into the nearest 220 volt, grounded, electrical outlet.1.
Connect the air compressor’s supply hose (not included) to the Filter & Pressure2.
Reducer + Lubr. (IT201 thru IT205). Set the air compressor’s regulator to no
more than 110 PSI. Turn on the air compressor, and allow sufcient time for
adequate build-up of compressed air. (See Figure A.)
Depress the Reverse Pedal (401) down. The Turntable (201) should turn in a3.
clockwise direction. Pull the Reverse Pedal up, and the Turntable should turn
counterclockwise. (See Figure A.)
Open the Bead Breaker Arm (321) manually, and depress the Bead Breaker4.
Pedal (402). The Bead Breaker Arm will close. When the Bead Breaker Pedal is
released, the Pedal should return to its original position. (See Figure A.)

Page 11SKU 90589 For technical questions, please call 1-800-444-3353.
Depress the Clamping Pedal (403) once to open the four Jaws (203). When the5.
Clamping Pedal is depressed again, the four Jaws should close. (See Figure A.)
Depress the Tilting Pedal (404). The Vertical Column (101) will tilt back, bringing6.
it to a non-working position. When the Tilting Pedal is released, the Vertical
Column will return to its original working position. (See Figure A.)
Press the Button on the Locking Handle Bar (142). Both the Vertical Arm (120)7.
and the horizontal Mounting Head Assy. (131) will be locked in position. Press
the Button inside the Locking Handle Bar, and the Vertical Arm and Horizontal
Mounting Head Assy. is released. (See Figure A.)
To Break The Tire Bead:
CAUTION! Before carrying out this procedure, deate the tire fully and remove all
of its wheel weights.
Depress the Clamping Pedal (403) twice to close the four Jaws (203) completely.1.
(See Figure A.)
Open the Bead Breaker Arm (321) manually by pushing it towards the outside.2.
(See Figure A.)
FIGURE C
SHOVEL (315)
3. Place the wheel up against the Rubber Wheel Support (3 & 11). Bring the Shovel
(315) against the bead about four inches from the edge of the wheel rim.
(See Figures A and C.)
Depress the Bead Breaker Pedal (402) to fully activate the Shovel (315).4.
Release pressure on the Bead Breaker Pedal when the Shovel has reached the
end of its travel and/or when the tire bead is broken. (See Figures A and C.)
Rotate the tire slightly, and repeat the procedure around the entire circumference5.
of the wheel rim until the bead is completely detached from the wheel rim.
(See Figures A and C.)

Page 12SKU 90589 For technical questions, please call 1-800-444-3353.
2. Depress the bead breaker pedal
fully to activate the paddle. Release
pressure on the bead breaker pedal,
when the blade has reached the end
of its travel and/or when the tire bead
is broken. Rotate the tire slightly,
and repeat the procedure around the
entire circumference of the wheel rim
until the bead is completely detached
from the rim.
3. Depress the column tilting pedal;
the column is tilted back to non-
working position. Lock the wheel on
the turntable by depressing the jaw
clamp pedal.
4. Depress the column tilting pedal
again and the vertical Arm will return
to original position.
5. Position the mounting head by
hand against the edge of the rim.
Press the button on the handle. The
vertical Arm and Horizontal Arm will
be automatically locked in position;
meanwhile, the mounting head will be
lifted 1/16”-1/8” above the rim edge.
6. Insert the lever between the tire
bead and the front section of the
mounting head.
1. DEFLATE THE TIRE FULLY !!!
Open the bead breaker arm by hand
by pushing it towards the outside.
Place the wheel up against the
Rubber Buffer. Bring the Paddle
against the bead about 3/8” from the
edge of the rim.
Repeat Steps #2 through #6 for the other side of the wheel.6. (See Figure C.)
To Demount The Tire From The Wheel:

Page 13SKU 90589 For technical questions, please call 1-800-444-3353.
7. Then work the lever around the tire. 8. Move the tire bead over the mounting
head.
9. With the lever (or hands) held in
position, rotate the turntable in a
clockwise direction by fully depressing
the reverse pedal.
To Demount The Tire From The Wheel: (continued)
12. Repeat the above steps for the
other side of the tire.
10. Continue until the tire is completely
separated from the wheel rim. And
remove the inner tube (if the tire has an
inner tube).
11. Insert the lever between the other
side of the tire bead and the front section
of the mounting head. Move the tire
bead over the mounting head.

Page 14SKU 90589 For technical questions, please call 1-800-444-3353.
To Mount The Tire Onto The Wheel Rim:
1. Depress the column tilting pedal; the
column is tilted back to non-working
position. Lock the wheel rim on the
turntable by depressing the jaw clamp
pedal.
2. Put the tire on the rim.
4. Move the tire so that the bead farthest
away passes below the front section of
the mounting head and is brought up
against the edge of the rear section of the
mounting head.
5. Here is how it looks from the other
side.
6. Rotate the turntable in a clockwise
direction by fully depressing the reverse
pedal.
3. Position the mounting head by hand
against the edge of the rim. Press the
button on the handle. The vertical Arm
and Horizontal Arm will be automatically
locked in position; meanwhile, the
mounting head will be lifted 1/16”-1/8”
above the rim edge.

Page 15SKU 90589 For technical questions, please call 1-800-444-3353.
7. Continue until the bead farthest away is
completely onto the wheel rim.
8. Insert the inner tube (if there is one). And
spread tire grease (or a similar lubricant)
liberally on the complete circumference of
the tire bead.
9. Move the tire so that the bead passes
below the front section of the mounting head
and is brought up against the edge of the
rear section of the mounting head.
10. Keep the tire bead pressed down into
the wheel rim channel with your hands
(or the lever). Then, depress the reverse
pedal to rotate the turntable clockwise.
11. Continue this process throughout the entire
circumference of the wheel and tire.
12. If the tire locks up in above step,
pull the reverse pedal up to rotate the
turntable counterclockwise to unlock it.
Check the wheel rim and the tire are of
the same size. And try again.
To Mount The Tire Onto The Wheel Rim: (continued)

Page 16SKU 90589 For technical questions, please call 1-800-444-3353.
To Inate The Tire:
1. WARNING! A burst tire can cause serious injury or even death to the operator
or bystander. Always make sure the wheel rim and the tire are of the same
size. Check the condition of the tire, and make sure it has no defects before
beginning the ination process. Keep your hands and body as far away from the
tire as possible. Inate the tire with briefs jets of air, checking the air pressure
frequently. Never inate a tire above or below the air pressure recommended by
the tire manufacturer.
FIGURE F
NOZZLE
VALVE STEM
TIRE AIR HOSE
LOCKING LEVER
2. There is an Ination Pedal (IT106) on the left side of the Tire Changer. When the
Ination Pedal is depressed down to its middle position, air is released from the
air hose. When the Ination Pedal is depressed down completely, air is released
from the ination jet nozzles on the Turntable (201). (See Figures A and F.)
To Mount The Tire Onto The Wheel Rim: (continued)
13. Depress the column tilting pedal;
the column is tilted back to non-working
position.
14. Press the inating pedal down to the
middle position to start tire ination. Inate
the tire with brief jets of air! Checking
the air pressure frequently. Once the
proper air pressure has been reached,
disconnect the nozzle from the valve stem
and screw a valve cap onto the stem.
15. For a tubeless tire, if the bead of the
tire is not well seated, due to a strong
bead, lift tire manually until the upper
bead seals against the rim, then press the
pedal all the way down. A strong jet of air
will be released through the nozzles in the
slides and this will help the bead seal.

Page 17SKU 90589 For technical questions, please call 1-800-444-3353.
While the wheel/tire is still clamped onto the Turntable (201), depress the Ination 3.
Pedal (IT106) completely while slightly raising and lowering the tire by hand to
contact the beads on both sides of the tire with the edges on both sides of the
wheel rim. Meanwhile, air is being released from the ination jet nozzles on
the Turntable, expanding the tire until the beads on both sides make complete
contact with the full circumference of the wheel rim on both sides and seal the
beads to the edges of the wheel rim. (See Figures A and F, previous page.)
Immediately when there is an air tight seal between the beads on both sides and4.
wheel rims on both sides release pressure on the Ination Pedal (IT106).
(See Figure A.)
Attach the Nozzle of the air hose to the valve stem of the tire. Make sure the5.
Locking Lever of the Nozzle is in the “UP” position to lock the Nozzle onto the
valve stem. (See Figure F.)
Depress the Air Inator Button. Depress the Ination Pedal (IT106) down to its 6.
middle position to release air from the air hose. (See Figures A and F.)
Remember to inate the tire with brief jets of air, checking the air pressure 7.
frequently. Once the proper air pressure has been reached, release pressure on
the Ination Pedal (IT106). Disconnect the nozzle of the air hose from the valve
stem of the tire, and screw a valve cap onto the stem. (See Figures and F.)
Depress the Tilting Pedal (404) so the Vertical Column (101) will tilt back to its8.
non-working position, release the clamping jaws and remove the wheel/tire from
the Tire Changer. (See Figure A.)
INSPECTION AND MAINTENANCE
WARNING! Prior to performing any inspection or maintenance procedures,
disconnect the Tire Changer from its air supply source. Pump the Bead
Breaker Pedal (402) several times to evacuate all compressed air from the
machine, and disconnect the unit from its electrical supply source.
Before each use:1. Inspect the general condition of the Tire Changer. Check
for misalignment or binding of moving parts, cracked or broken parts, damaged
wiring, damaged air hoses, and any other condition that may affect its safe
operation. If abnormal noise or vibration occurs, have the problem corrected
before further use. Do not use damaged equipment.
Daily:2. Clean the machine daily to remove any dirt or tire debris from the Jaw
Slides (202). Then, lubricate the Slides with grease.
At least once per week:3. Clean the Turntable (201) with detergent or a non-
ammable solvent. Then, lubricate the Jaw Slides (202) with grease.

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OIL
REGULATOR
SCREW
LUBRICATOR
(IT204)
OIL CAP
FILTER & PRESSURE
REDUCER
(IT205)
RED NOTCH
JAR SIGHT GLASS
LOCKING RING
JAR
FIGURE G
4. At least once per month: Check the oil level in the Lubricator (IT204). If
necessary, remove the Oil Cap. Fill the Tank with SAE 30-weight oil, and replace
the Oil Cap. Also, make sure that one drop of oil is injected into the Tank every
3-4 times the Bead Breaker Pedal (402) is depressed. If necessary, regulate the
rate of oil injection with the Oil Regulator Screw. (See Figure G.)
After the rst twenty days of use: 5. Re-tighten the Jaws Tightener (218) and the
Screws (214) located on the Turntable Slides (201). (See Assy. Diagram.)
BELT (605) MOTOR SUPPORT (622)
SCREW (618)MOTOR (601)
FIGURE H
6. In the event of a loss of power: Check to see if the Belt (605) is tight. To do
so, remove the Left Cover (8) which is located on the left side of the Body (1).
Regulate the Belt tension by adjusting the Screw located on the Motor Support
(622). (See Figure H.)
Daily:7. Check the level of water in the Filter & Pressure Reducer (IT205). The
level must never reach above the Red Notch in the Jar’s Sight Glass. When
necessary, drain the water by turning the Locking Ring clockwise. (See Figure
G.)
Every 30-40 days:8. Dismantle the Jar to remove any solids collected inside it.
(See Figure G.)

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5-WAY VALVE (432)
SILENCER
FIGURE I
AIR HOSE (428) AIR HOSE (430)
AIR HOSE (429)
9. To clean or replace a 5-Way Valve (432): Remove the Left Cover (8) which is
located on the left side of the Body (1). Remove the Air Hoses (428, 429, 430)
from the 5-Way Valve - note the locations they are removed from. Clean the 5-
Way Valve, using a jet of compressed air. Or if necessary, replace the unit and
reattach air hoses to 5-Way Valve. (See Figure I.)
TROUBLESHOOTING GUIDE
Situation:1.
Turntable does not rotate.
Possible Reasons:
A. The Power Plug is not inserted in its electrical outlet or no power from the
main electrical supply source.
B. The Motor is malfunctioning
C. The Reverse Pedal is broken.
D. The Belt is loose or broken.
Solutions:
A. Insert the Power Plug, and reset the main electric supply source.
B. Check for loose wires in the Motor.
C. Check and repair entire Reverse Pedal assembly.
D. Adjust or replace the Belt.
Situation:2.
Turntable locks while mounting/removing tire.
Possible Reason:
The belt is loose.
Solution:
Adjust belt tension.
Situation:3.
Jaws slow to open/close
Possible Reason:

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The silencer is clogged.
Solution:
Clean or replace the silencer.
Situation:4.
Turntable does not lock the wheel rim correctly.
Possible Reasons:
A. The jaws are worn.
B. Defective piston
Solutions:
A. Replace jaws
B. Replace plate cylinder gasket.
Situation:5.
Tool touches the wheel rim during tire mounting/demounting process.
Possible Reasons:
A. The Locking slide is incorrectly adjusted or defective.
B. The Locking slide screw is loose.
Solutions:
A. Adjust or replace the locking slide.
B. Tighten the screw.
Situation:6.
Bead Breaker Pedal and Jaw clamp pedal lock out of position.
Possible Reason:
Return spring of the pedal broken.
Solution:
Replace spring.
Situation:7.
Bead breaking operation difcult
Possible Reasons:
A. The silencer is clogged.
B. The Value shaft O-ring is broken.
C. The cylinder piston V-seal or O-ring are broken
Solutions:
A. Clean or replace the silencer.
B. Replace the O-ring.
C. Replace the V-seal or O-ring.